Relationship between Type D personality and adverse health outcomes in people with type 2 diabetes: The parallel mediating roles of diabetes distress and social isolation.
Eun-Hyun Lee, Young Whee Lee, Duckhee Chae and 2 others
PMID 36576733WHAT IT FOUND
Type D personality directly lowered quality of life but not blood glucose control.
Diabetes distress and social isolation acted as parallel mediators, linking the personality type to both outcomes. Screening for these psychosocial factors is necessary to identify patients at risk.
Key findings
01Type D personality had a significant direct negative effect on health-related quality of life but no direct effect on HbA1c.
02Diabetes distress and social isolation served as parallel mediators, indirectly linking Type D personality to both HbA1c and quality of life.
03The indirect effect on quality of life via diabetes distress was significantly greater than the effect via social isolation.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The cross-sectional design prevents establishing causality or temporal order between personality, mediators, and health outcomes. The study was conducted in Korea, which may limit generalizability to other cultural contexts. Social isolation was measured using a specific index that may not capture all dimensions of loneliness or social support.
Declared interests
The study was funded by the National Research Foundation of Korea. The authors declared no conflicts of interest.
The easy way to misread this
Do not assume that Type D personality directly causes poor blood glucose control. The study found no significant direct link between the personality type and HbA1c; the association exists only indirectly through diabetes distress and social isolation.